Drawing-frame.



No. 723,630. PATENTED MAR. 24, 1903'.

L. J. WRIGLEY.

DRAWING FRAME.

APPLIUATION FILED MAY 21, 1902.

no MODEL.

' INVENZOH I Lear J A TTUHNEYS.

i i L 5 W ni imm UNITED STATES.

ATENT LEES JOHN -WRIGLEY, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR OF ONE- HAIIF TO LOUIS I. GUION, OF COLUMBIA, SOUTH CAROLINA.

DRAWING-FRAM E.

SPECIFICATION forming part of LettersPatent'NO. 723,630, dated March 24, 1903.

Application 516a May 21, 1902. Serial No. 102,354. (No model.) r

To aZZ whom, it may concern Be it known that I, LEEs JOHN WRIGLEY, a citizen of the United States, and a resident of Lawrence,in the county of Essex andState of Massachusetts, have invented a new and Improved Drawing-Frame, of which the following is a full, clear, and exact description. This invention relates to improvements in drawing-frames for drawing fiber in several IO processes in textile mills, the object being to provide a simple meansiu lieu of the usual weights, springs, or levers for holding down the rolls, and also to provide a means for automatically releasing the pressure should [5 sliver lap around drawing-rolls or other obstruction occur in the fiber..

This invention may also be employed in connection with'railway-heads, slubbers, inter-v 0 in which similar characters of reference indicafe corresponding parts in all the figures.

Figure 1 is a section on the line ma: ofFig. 2 of a drawing-frame embodying my invention. Fig. 2 is a plan view thereof, and Fig." 3 is a perspective view of one of the roller hearings or necks.

Referring to the drawings, 1 2 3 4 indicate the lower rollers, and 5 6 7 8 indicate the upper rollers, these rollers being longitudinally o fluted or corrugatedin the usual manner and consisting of wood, metal, or the like. The lower rollers have bearings in the side frames 9, and the upper rollers have hearings in necks 10, having angular portions for engaging in the openings formed in the side frames.

The means for preventing the rise of the top rolls from a proper mesh with the bottom rolls consists of arms 11, engaging upon the necks of the upper rollers, these arms being pivoted to standards 12, arranged at the inlet end of the machine. The arms at a point directly over the necks of the front roller 5 are raised above the said necks, so that the said front top roller may have a slight upward movement, as will be hereinafter described. On the free ends of the arms are locking-latches 13, the said latches having pivotal connection with the arms, and the lower ends are designed to engage with holding devices, which in Fig. 1 are shown as bolts 14, adjustable in lugs 15, mounted on the side frames 9. The necks 10 of thefirst roller 5 are provided with outwardly projected lugs or pins 16, designed to engage in notches 17, formed in the locking-latches.

In the operation of the machine the several rollers rearward of the front roller 5 are held down by' means of the arms 11, and the front roller 5 is held down by means of the latches engaging with the lugs.- It will be noted that p the upper walls of the notches 17 are inclined upward, and therefore While the cotton is passing between the rollers should a lap-up occur or other obstruction pass between the rollers 1 and 5 the upper roller 5 will be elevated and the pins 16 will force the lockinglatches out of engagement with the bolts 14, thus permitting the arms 11 to swing upward.

It may be here stated that these arms are preferable to the ordinary weights, levers,

and springs, because the jumping of the upper rollers is prevented while the machine is in operation and wear on the necks and bearings of the rollers is reduced to a minimum.

A machine embodying my invention will operate with much less power than the machines in which weights are employed for holding the rollers down, and the production will be considerably greater than is possible with such machines.

Having thus described my invention, I claim as new and desire to secure by Letters Patentv 1. In a machine of the character described, a the upper and lower rollers, bearings for the 5 rollers, pressure-arms engaging on bearings of upper rollers, and means operative upon upward movement of a roller for automatically releasing said arms,substantially as specified.

2. In a machine ofthe characterdescribed, a series of lower rollers, a series of upper roll- ICO ers, stationary necks in which the upper rollers have bearings, arms arranged to engage upon certain of said necks, locking-latches for the arms, and means carried by the first roller of the upper series for releasing said locking devices, substantially as specified.

3. In a machine of the character described, a series of lower rollers, a series of upper rollers, bearing-necks for the upper rollers, pivoted arms for engaging upon certain of said necks, the necks of the first roller being arranged for upward movement, locking-latches pivoted to the free ends of the arms, the said latches being provided with notches, a device on the machine-frame for engaging with said latches, and projections on the necks of the first upper roller for engaging in the notches of the latches, substantially as specified.

4. In a machine of the character described, a series of lower rollers, a series of upper rollarranged in said lugs and adapted to engage,

with the locking-latches, the said lockinglatches being provided at their inner sides with notches, and pins extended from the necks of the first upper roller for engaging with said notches, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LEES JOHN VVRIGLEY.

Witnesses:

J. Y. CUNNINGHAM, L. I. Gown 

